Method for charging electrical energy store by means of voltage pulses

一种电蓄能器、蓄能器的技术，应用在电动汽车充电技术、二次电池充电/放电、充电站等方向，能够解决电蓄能器安全性风险等问题

Pending Publication Date: 2020-05-15
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If these variables exceed or do not exceed defined thresholds or limit values, this represents a risk to the safety of the electric energy storage

Method used

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  • Method for charging electrical energy store by means of voltage pulses
  • Method for charging electrical energy store by means of voltage pulses
  • Method for charging electrical energy store by means of voltage pulses

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Embodiment Construction

[0029] The same reference numerals designate the same device components or the same method steps in all figures.

[0030] figure 1 A schematic diagram of the disclosed electric energy store 1 according to one specific embodiment is shown. In this case, the electric energy store comprises three electric energy store cells 11 , 12 , 13 which are electrically connected to one another in a series circuit. Furthermore, the electric energy store 1 has an electronic circuit 18 which includes two field effect transistors 14 , 15 . For controlling the electronic circuit 18 there is an electronic control unit 16 which opens or closes the field effect transistors depending on the switch. The charging voltage required for charging the electric energy storage cells is generated by the generator 17 , which is converted via the circuit 18 into a pulse-shaped charging voltage. In this case, the voltage generated by the generator, in particular the DC voltage, is greater than a predefined, ...

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PUM

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Abstract

The invention relates to a method for charging an electrical energy store. The electrical energy store comprises at least one electrical energy storage unit and a predefined maximum permissible energy-store voltage limit value specified for the electrical energy store. The electrical energy store is charged with a pulsed charging voltage, wherein a maximum value of the pulsed charging voltage is greater than the predefined maximum permissible energy-store voltage limit value over a pulse duration in the case of at least one pulse. The invention further relates to a corresponding device for charging the electrical energy store, a corresponding computer program, a corresponding machine-readable storage medium and the corresponding electrical energy store.

Description

technical field [0001] The invention proceeds from a method for charging an electric energy store, a device for charging an electric energy store, a corresponding computer program, a corresponding machine-readable storage medium and an electric energy store, wherein the electric energy store The energy storage device includes an electric energy storage unit and predefines a predefined, maximum permissible limit value for the energy storage voltage for the electric energy storage unit. Background technique [0002] During the increasing electrification of vehicles, in particular motor vehicles, electric energy stores consisting of a plurality of smaller cells are increasingly being used. These are mostly battery packs, based in particular on lithium-ion technology, which are formed from a plurality of battery modules or battery cells. In order to ensure the safety of these energy stores, variables such as the current and the voltage of the electric energy store or of the sma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH01M10/44B60L53/22B60L3/0046B60L2210/10H02J7/00711H02J2310/48H02J7/007Y02T10/72Y02T10/70Y02T10/7072Y02T90/14Y02E60/10Y02T90/12B60L53/62B60L58/12H01M2220/20H02J7/0013
Inventor A.莱姆克S.托伊施T.朗M.亨尼格D.格罗辛格U.舒特尔
Owner ROBERT BOSCH GMBH
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